Question

выполнить прибавление 
$frac{y - 16}{2y} + frac{8y - 3}{ y^{2} }$

Answer 1

$frac{y-16}{2y}+ frac{8y-3}{y^2}= frac{y(y-16)}{2y^2}+ frac{2(8y-3)}{2y^2}= frac{y^2-16y+16y-6}{2y^2}= \ frac{y^2-6}{2y^2}= frac{y^2}{2y^2} -frac{6}{2y^2}=1/2- frac{3}{y^2}$